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== Building Octave on Slackware ==
 
== Building Octave on Slackware ==
  
GNU Octave is contained in the [http://www.slackbuilds.org SlackBuilds repository], which contains building receipts for several software packages. The [http://slackbuilds.org/howto/ SlackBuilds Howto] page describes in detail, how to use such a receipt.
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Octave is contained in the [http://www.slackbuilds.org SlackBuilds repository]. To build [http://slackbuilds.org/repository/14.1/academic/octave/ Octave], you will also need the [http://slackbuilds.org/repository/14.1/libraries/blas/ BLAS] and [http://slackbuilds.org/repository/14.1/libraries/lapack/ LAPACK] libraries, which are not contained in a Slackware standard installation. Note that there are further dependencies which are optional, e.g. for me, GraphicsMagick. They are also listed on the Slackbuilds octave page.
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The rest of this page is just following the steps for slackbuilds one by one, so if you want to do it yourself, go to the [http://slackbuilds.org/howto/ Slackbuilds Howto] and follow these instructions one by one.
  
The [http://slackbuilds.org/repository/14.2/academic/octave/ receipt for Octave] has dependencies, which aren't automatically resolved and are listed in the [http://slackbuilds.org/slackbuilds/14.2/academic/octave/README README file] of the Octave receipt.
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To install the packages, go on their Slackbuilds page and donwload the source packages of lapack and octave (under "Source Downloads") and the SlackBuild (named blas.tar.gz, lapack.tar.gz, octave.tar.gz). If you want a more recent version of octave than the SlackBuild, download that, and please inform the SlackBuild maintainer that there is a newer version of octave.
Those dependencies are:
 
* [http://slackbuilds.org/repository/14.2/libraries/blas/ BLAS] and
 
* [http://slackbuilds.org/repository/14.2/libraries/lapack/ LAPACK]
 
  
Note that there are further dependencies which are optional, e.g., [http://slackbuilds.org/repository/14.2/graphics/GraphicsMagick/ GraphicsMagick]. Another more general list of dependencies is given in the [[Building]] wiki page.
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In the end, what I did, was:
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* tar -xzf blas.tar.gz
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* cp blas-$VERSION.tgz blas/
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* cd blas
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* chmod u+x blas.SlackBuild
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* [modify blas.info to fit the right version, modify blas.SlackBuild if you want to change compiling parameters. I removed the `chown root:root ...` line from the slackbuild, since then I could build as user]
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* ./blas.SlackBuild
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* sudo installpkg /tmp/blas-$VERSION.txz
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Then, the same, replacing blas with lapack and octave. And, in my case, before octave, any dependencies you might need (e.g., GraphicsMagick).
  
 
[[Category:Building]]
 
[[Category:Building]]
 
[[Category:Installation]]
 
[[Category:Installation]]
 
[[Category:GNU/Linux]]
 
[[Category:GNU/Linux]]

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